Balancing Chemical Equations Concepts

Balancing Chemical Equations Concepts

Assessment

Interactive Video

Chemistry

9th - 10th Grade

Practice Problem

Hard

Created by

Sophia Harris

FREE Resource

The video tutorial explains how to balance a neutralization reaction involving perchloric acid and calcium hydroxide. It begins by counting the atoms on both sides of the equation, focusing on hydrogen, chlorine, and oxygen. The tutorial demonstrates adjusting coefficients to achieve balance, emphasizing the importance of counting atoms accurately and leaving oxygen balancing for last. The video concludes with a balanced equation and key tips for balancing chemical equations.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the reactants in the neutralization reaction discussed?

Sulfuric acid and potassium hydroxide

Nitric acid and magnesium hydroxide

Hydrochloric acid and sodium hydroxide

Perchloric acid and calcium hydroxide

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many hydrogen atoms are initially present on the reactant side?

One

Four

Two

Three

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the total number of chlorine atoms on the product side after initial balancing?

Two

One

Three

Four

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many oxygen atoms are there on the product side before balancing?

Six

Eight

Ten

Nine

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the total number of oxygen atoms on the reactant side after balancing?

Nine

Eight

Eleven

Ten

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What adjustment is made to balance the hydrogen atoms in the equation?

Add a coefficient of 4 to H2O

Add a coefficient of 3 to H2O

Add a coefficient of 1 to H2O

Add a coefficient of 2 to H2O

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the final step in ensuring the equation is balanced?

Balancing the hydrogen atoms

Balancing the oxygen atoms

Balancing the chlorine atoms

Balancing the calcium atoms

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